An item which is an integral part of the barrel extension group of a weapon. It is designed to prevent the loss of gas pressure, by locking the barrel extension to the bolt during firing.
Classification: Parts and accessories for military rifles of heading 9301
NSN 6145-01-649-8002
NSN 5905-01-043-9250
NSN 6110-01-443-3240
NSN 6220-00-798-6831
NSN 5920-01-486-3826
NSN 5996-01-433-9067
NSN 5915-00-367-2854
NSN 6110-01-580-9038
NSN 6240-01-067-6457
NSN 5975-01-303-2166
NSN 5895-01-355-8584
NSN 6650-00-834-9062